baber/WOPTO huggingface dataset:
Patent GB-882132-A (GB)
Title: Improvements in or relating to the alkylation of hydrocarbons
Inventor: BRYCE-SMITH DEREK
IPC: C07C2/86
Filed: 1959-07-06
Abstract: Activated magnesium chloride for use as a catalyst in alkylating hydrocarbons is prepared by reacting magnesium with a chlorine-containing compound in a non-polar solvent, defined as having a dielectric constant of not more than 15.  The chlorine-containing compound may be inorganic, e.g. chlorine, hydrogen chloride, boron trichloride, or silicon tetrachloride which are preferably used moist, or organic, e.g. alkyl, preferably primary alkyl, chlorides, such as n-butyl, n-amyl, benzyl or methyl chloride. The non-polar medium may be dry air, nitrogen, a liquid hydrocarbon, e.g. iso-octane, benzene, toluene or isopropyl benzene, a chlorinated hydrocarbon or an ether or ketone used under conditions not forming co-ordination complexes. In a gaseous medium the magnesium, as powder or turnings, is heated in a stream of gaseous or vaporous chlorinating agent.  In a liquid medium the reactants are refluxed, the chlorinating agent being bubbled through if gaseous.ALSO:Hydrocarbons, especially aromatic hydrocarbons, are alkylated with wholly aliphatic alkylating agents in the presence of magnesium chloride prepared by reacting magnesium with a chlorine-containing compound in a non-polar medium (i.e. having a dielectric constant below 15).  The chlorine-compound may be chlorine, hydrogen chloride, boron trichloride, silicon tetrachloride, or an alkyl, perferably primary alkyl, chloride, e.g. n-butyl, n-amyl, benzyl or methyl chloride.  Suitable non-polar media are air, nitrogen, hydrocarbons or chlorinated hydrocarbons; ethers and ketones may be used in conditions not resulting in co-ordination complexes.  Preferably the magnesium chloride is prepared in situ using the hydrocarbon to be alkylated as the non-polar medium and possibly using the same alkyl chloride as chlorinating agent and as alkylating-agent.  Alternatively the alkylating agent may be an olefin or alcohol and may contain up to 20 carbon atoms.  The hydrocarbon is used in excess at 100 DEG C.-500 DEG C., hydrogen chloride may be present and iodine, bromine or an iodine- or bromine-containing compound may be added in an amount of 0.2% by weight of alkylating agent.
Patent GB-442543-A (GB)
Title: Apparatus for making bricks and like articles of toy or full size
IPC: A63H33/04
Filed: 1934-08-10
Abstract: 442,543. Toys. ADRIAANSZ, R., 12, Oude Doelenstraat, Amsterdam, and SPEAKMASTER, E., 78, Lordship Park, Stoke Newington, London. Aug. 10, 1934, No. 23133. [Class 132 (iii)] [See also Group V] Apparatus for use as a toy or otherwise for making bricks &c comprises a mould fitted with an ejector a standard on which the combined mould and ejector, is mounted, means for actuating the ejector a displaceable de livery plate for receiving the expressed brick, and a dipping vat into which the delivery plate is lowered to immerse the brick in a hardening liquid. The standard 2 has a bracket 3 carrying a forked guide 4 and a spring clamp 5 which are adapted to engage the tubular stem 18 of the mould 17. A vertical bar 6 provided with a handle, is resiliently supported on the standard 2 so as to be capable of vertical movement and also of partial rotation round the standard. A crank disc 12 is mounted on the standard and operates a vertical rack 15. The bar 6 carries a vertically adjustable fork 21 which terminates in two resilient prongs 22 supporting the delivery plate 23 which is made of stainless gauze and has two slots 24. In operation, the mould 17 is filled and attached in the inverted position to the bracket 3. The rack 15 is then operated and engages a pivoted plate 16 attached to the rod 6. This assembly moves downward and the plate 16 engages the stem 19 of the ejector 20 and forces the brick out onto the delivery plate. The assembly 6 is then turned round the standard and the plate is lowered into the vat 25 to harden the brick. The assembly is again raised, turned through 180‹ and lowered so that two longitudinal ribs 30 on a conveyer belt 28 enter the slots 24 in the plate 23. When the belt is operated by a handle 29 the brick is removed from the plate 23 and delivered for storage and drying. A mixing or grinding mill may also be mounted on the standard to supply material to the mould. All the parts of the apparatus may be driven from a single source of power. A cutting wire or knife may be stretched across the mould to produce two bricks simultaneously or it may be separately mounted. The apparatus may be arranged on a horizontal instead of a vertical axis.
Patent GB-1038977-A (GB)
Title: Improvements in or relating to flux coated low hydrogen welding electrodes
Inventor: ROBERTS EDWARD
IPC: B23K35/40
Filed: 1962-06-15
Abstract: A method of preparing a moisture resistant coated low hydrogen welding electrode comprises applying to the surface of the electrode a moisture resistant basix flux and subsequently heat treating the coated electrode at a temperature within the range 520 DEG C. to 620 DEG C. wherein there is incorporated in the moisture resistant basic flux 10 to 25% by weight on the weight of the flux of an alkali metal silicate solution binder having an alkali metal silicate content of from 35% to 45% by weight on the weight of the solution and a molecular ratio of silica to alkali metal oxide in the alkali metl silicate within the range 2.9:1 to 3.9:1.  The alkali metal silicate may be Na silicate and or K silicate. Fluxes are specified with their quantitative compositions which comprise limestone with various of the following: - fluorspar, rutile, Fe-Mn, Fe-Si, Fe-Ti, Fe-Mo, Fe-Cr, Fe-B, Fe-Nb, Si-Mn, Fe powder, Ni, Cr, zircon, felspar, clay and an organic pressing agent. Fluxes are specified which are suitable for electrodes to be used in welding of mild steel, low alloy high tensile creep resisting steel and austenitic steel.
Patent GB-697769-A (GB)
Title: Process for rendering preserved latex heat sensitive and the manufacture of rubber articles therefrom
IPC: C08J5/02
Filed: 1951-10-05
Abstract: Heat sensitive latex is prepared by adding a water soluble naphthenate and zinc oxide to natureal rubber latex.  Suitable naphthenates are those of sodium, potassium, ammonium and water-soluble amines.  Preferably the naphthenate is added to the latex which is then allowed to stand for 24 hours, the latex separated into serum and cream and the latter mixed with a zinc oxide dispersion.  In Examples (1) and (2), sodium or ammonium naphthenate and zinc oxide dispersed with sulphur, zinc diethyl dithiocarbamate, phenyl naphthylamide and casein dissolved in borax were added to latex and then coconut oil solution, and the mixture frothed and heated to 100 DEG  C. for an hour to produce a sponge rubber product, (3) Ammonium naphthenate is added to latex and a similar zinc oxide dispersion, but containing Darvon in place of phenyl naphthylamine and the mixture gelatinized in a mould, (4) Ammonium naphthenate is allowed to stand for two days with latex and, after creaming, zinc oxide dispersion is added to the cream.  The resulting rubber is low in protein. Specifications 391,511, 439,364 and 640,258 are referred to.
Patent GB-1462875-A (GB)
Title: Method of scanning a surface
IPC: G01N21/89
Filed: 1973-05-16
Abstract: 1462875 Scanning device CIBA-GEIGY AG 18 April 1974 [16 May 1973] 23349/73 Heading G1A [ Also in Division G2] A method of scanning a path on a surface comprises directing two collimated beams of radiant energy derived from a single source along paths in different directions in a plane perpendicular to the axis of rotation of a mirror polygon to strike different faces of it, thereby deflecting the reflected paths through twice the angular subtense of each face at the centre, each reflected beam falling on such a surface for at least part of its deflection. Mounted on backboard 1, laser 2 supplies a beam reflected by beam-splitter 3 to duodecagonal mirror 4 and hence to plane mirror 12, mounted at 50 degrees to the horizontal, to reach film material 14 obliquely and thence to reflection collector 15 with photo-cell 16. The rest of the laser beam passes to pentagonal prism 6 and cylindrical lenses 7 and 8 which produce a flat beam which reaches mirror 4 via silvered prism 10 and hence via plane mirrors 17 and 18 mounted at 45 degrees to the horizontal, to strike the film normal to its motion and scan it, transmitted light reaching collector 19 with photo-cell 20. Beam-splitter 3 may be replaced by a sectored mirror shutter rotated in synchronism with mirror 4. In another embodiment the beam transmitted by the beam-splitter is deflected through 270 degrees by three plane mirrors so that it strikes the polygon diametrically opposite that reflected from the beam-splitter, so that a second travelling film can be scanned by it. In the embodiment of Fig. 3, beams A and B from a tungsten filament lamp follow similar paths. 32 and 34 are totally reflecting mirrors and 35 are projection lenses. Mask 33 determines the beam shape. Reflected from polygon 36, beam B begins to scan the film as A finishes scanning and vice versa. The source may be a gas discharge lamp and the radiant energy may be infrared and the film of photographic material.
Patent GB-1066001-A (GB)
Title: Improvements in the art of cleaning carpets
IPC: C11D17/00
Filed: 1965-06-01
Abstract: Powder-form compositions for cleaning carpets consist of a solid phase comprising an inert finely-divided carrier having a bulk density in the non-compacted state of 7.5-20 pounds per cubic foot, and a liquid phase mixed with the said solid phase and comprising 25-50 weight per cent of the composition; the said liquid phase containing (1) an organic solvent capable of completely evaporating at room temperature in 15-60 minutes when the composition is applied to a carpet, (2) water, and (3) a water-soluble surfactant capable of detergent action and characterized by the ability to dry to a fluffy residue.  The inert carrier may be diatomaceous earth, fuller's earth, ground corncob, ground cork, talc, or sawdust, preferably in the particle size range 2-40 microns.  Suitable solvent  are petroleum distillates, 1,1,1-trichloroethane, perchloroethylene, and ethylene glycol mono-butyl ether. Suitable surfactants are the Na, K, Li, NH4, isopropanolamine, and mono- and tri-ethanolamine salts of alkyl sulphates, alkylaryl sulphonates and alkylol sarcosinates, acetylenic glycols, and higher fatty acid alkanolamides, examples being given.  The compositions may also contain a dimethyl silicone emulsion as a lubricant to reduce internal cohesion between the carrier particles, and conventional additives such as preservatives. The compositions are applied manually to a carpet while it is on the floor, worked in by an applicator, the solvent and water allowed to evaporate, and the remaining fluffy residue finally removed by sweeping or vacuuming.
Patent GB-1101102-A (GB)
Title: Retrievable bridge plug
IPC: E21B23/00
Filed: 1965-06-01
Abstract: 1,101,102. Wells &c. BYRON JACKSON Inc. 1, June, 1965 [28, Aug., 1964], No. 23382/ 65. Heading E1F. In a retrievable bridge plug comprising inner and outer bodies 1, 4, valves 83, 80 carried by the inner body, packers 61, 62 carried by the outer body, a conical expander 37 on the outer body, slips 31 slidable on the outer body, and a drag member 6 slidable on the outer body and connected to the slips, latches (40) (Fig. 5 not shown), are provided on the drag member to releasably connect the drag and outer members to prevent setting of the plug until the latches engage casing of sufficiently small diameter. The body I is connected by a torsion spring 100 to a running head 3 and engages a cross head 92 so that during running-in, of the plug, the drag member and outer body travel together to prevent setting of the plug. When the position at which the plug is to be set is reached, the running-in pressure is relieved from the body 1 which is then moved slightly upwards under the action of a spring 81 to render the crosshead inoperative so that the plug may be set (as shown) by fluid pressure from above against the packer 61 and closed valve 83, or by pressure from below packer 62 and closed valve 80. The plug may be test set by turning the head relative to the body 1 and pressing downwardly so that the head acts directly to move the body 4 downwardly without engaging the cross shaft with the drag member.
Patent GB-517838-A (GB)
Title: Improvements in and relating to high tension transformers
IPC: H01F27/32
Filed: 1938-08-08
Abstract: 517,838. Transformers. AKT.-GES. BROWN, BOVERI, & CIE. Aug. 8, 1938, No. 23391. Convention date, Aug. 7, 1937. [Class 38 (ii)] In a high tension transformer the high tension wind- "ing is formed of a number of coils c separated from the low tension winding b and the core a by insulating layers f formed of insulated wires or cables wound as shown round the low tension winding. The metal cores of the insulating cables are connected to suitable points of the high tension winding. The windings may extend along only the lower half of the transformer limb, the insulating cables on the upper half of the limb being surrounded by potential equalisation rings. The coils c may be carried by porcelain or other insulating distance pieces strung on hard paper tubes arranged outside the coils.
Patent GB-1048037-A (GB)
Title: Building elements
IPC: E04B7/10
Filed: 1963-06-12
Abstract: 1,048,037. Building element for roofs &c. MOBIL OIL CORPORATION. June 12, 1963 [June 19, 1962; Dec. 14, 1962], No. 23405/63. Heading E1V. A building element A B C D in the form of a shell comprises three triangular surfaces AFG, GFD, and DGA of a tetrahedron extending upwardly towards an apex G, in association with two upwardly extending triangular surfaces ABF, FCD whose base lines AF, FD are common to two of the lines defining the base AFD of the tetrahedron. The element may be formed from a flat rectangular blank of bendable material which is slit from the edge to the apex on that part of the blank which is to form the surface DGA, Figs 1 and 2 (not shown). The elements may also be made of concrete. A plurality of the elements may be assembled to form a roof, adjacent elements being connected side-byside along their edges AB, CD, and end-to-end along their edges BF, FC which together define a V-formation, and supported from lower and upper spaced horizontal beams 42 (not shown) and 40 respectively which are mounted upon at least one column. The elements may also be used for forming walls.
Patent GB-295998-A (GB)
Title: Improvements in means for keeping clean knitting machines
IPC: D04B35/32
Filed: 1928-08-16
Abstract: 295,998. Maratti Soc. A.non., (Assignees of Seifert, 0.). Aug. 22, 1927, [Convention date]. Dust, confining on generation. -Suction apparatus for clearing threads, dust. &c. from knitting machines is located within the machine and executes a rotary movement. The circular warp knitting machine shown comprises a reciprocating ring 2 carrying needles 3. A ring 6 rotating on rollers 5 conveys the bobbin carriers 7. An electrically driven exhauster 14 with dust container 15 is fixed to a bobbin carrier and carries suction tubes 11 extending to the parts to be cleaned. Alternatively, the tubes 11 may be connected with a vacuum main which surrounds the circular stand 1 and is connected to an exhauster outside the machine. The Specification as open to inspection under Sect. 91 (3) (a) states that the apparatus may be applied to looms, and may execute a reciprocating movement. This subject-matter does not appear in the Specification as accepted.
Patent GB-829963-A (GB)
Title: A spacer device for a tube-welding machine
IPC: B21C37/08
Filed: 1957-07-25
Abstract: 829,963. Welding by pressure. ETNA MACHINE CO. July 25, 1957 [Nov. 8, 1956], No. 23634/57. Class 83 (4). A spacer device for spacing the edges of a gapped tube T advanced towards welding rollers P comprises a housing 10 with a pair of spaced opposite side walls and therebetween a cavity 13 open laterally in two mutually-opposite directions transverse of the device and a spacer roll 14 and a pair of supporting rolls 22, 23 rotatably mounted in the cavity on shafts extending across the cavity from one side-wall to the other, the supporting rolls being mounted nearer to respective end of the cavity than the spacer roll, and a minor portion of the spacer roll projecting from the cavity in one of the said directions and a minor part of each supporting roll projecting from the cavity in the other direction so that with the device held stationary within the tube the spacer roll spaces the longitudinal edges S of the tube and the supporting rolls have rolling contact with the inside of the tube opposite to the edges. The tube T is formed by rolls from a flat metal ribbon and is advanced between pressure rollers P and a guide roll P<SP>1</SP> while welding electrodes W supplied with very highfrequency, e.g. radio frequency, current slidably engage the top of the tube in advance of the rollers. The housing 10 is of metal and has a rod 11 extending rearwardly and anchored to a bracket outside the tube. The supporting rollers are metal rolls 22, 23 mounted on insulating sleeves with metal cores in the cavity 13 to engage the lower inner surface of the tube. The spacer roller 14 is formed by two stepped metal sections 15 separated by an insulating member 16 and is mounted on an insulating sleeve with a metal core. The advancing tube edges engage the sections 15 and are supported by the steps 18, the roller 14 rotating by frictional contact. A scarfing tool may be carried on a rod 12 extruding forwardly of the housing.
Patent GB-236556-A (GB)
Abstract: 236,556. Heymer, P. July 1, 1924, Convention date]. Appliances for illuminating cavities.-An endoscopic instrument has one or more reflectors b, c arranged between the inspection window d and the front face e of the eight tube a, the distance between the window d and the face e being at least as large as the inner diameter of the outer tube.
Patent GB-1041344-A (GB)
Title: Improvements in or relating to vinylanthraquinones
IPC: C07C46/00
Filed: 1963-06-13
Abstract: Dehydrogenation of 2-ethylto 2-vinyl-anthraquinone is effected at 550-650 DEG  C. in presence of a catalyst such as Pt or Pd supported on Al2O3, SiO2-gel, activated C or asbestos.
Patent GB-1078424-A (GB)
Title: Process for preparing 4-(4-oxo-2,6,6-trimethyl-2-cyclohexen-1-yl)-1,3-butadiene
IPC: A24B15/30
Filed: 1964-11-06
Abstract: The compound of formula <FORM:1078424/C2/1> is prepared by reducing 5-oxo-alpha-ionone (I) to 5-oxo-alpha-ionol and dehydrating the latter. I is made by oxidizing alpha-ionone with t-butyl chromate. Exemplified reagents for effecting the reduction and dehydration are NaBH4 and KHSO4, respectively.
Patent GB-252955-A (GB)
Title: Arrangement for adjusting the stroke of lubricator and the like feed pumps
IPC: F16N13/04
Filed: 1925-09-23
Abstract: 252,955. Gr³tzner, A. Sept. 23, 1925. Crank and tappet-actuated pumps ; stroke, varying; pumps in series; valves, arrangement of.-In a lubricating pump of the kind in which a feed pump 6 delivers oil to a sight feed chamber 18 from which it is withdrawn by a main pump 20, the feed pump has a cylindrical delivery valve coaxial with the barrel, extensions on the valve projecting into the chamber 18 and into the hollow plunger 6 so that the latter can be rotated in order to adjust its stroke by shifting the nut 8 along the plunger stem. A pin 10 prevents rotation of the nut which is engaged by the forked end 4 of the crank-actuated main pump plunger.
Patent GB-599116-A (GB)
Title: Improvements in or relating to the separation of organic compounds by distillation
IPC: C07C17/386
Filed: 1945-09-14
Abstract: <PICT:0599116/III/1> Monochlorobenzene is removed from 2, 2-bis (p-chlorophenyl)-1, 1, 1-trichloroethane by distilling the mixture at reduced pressure and at a temperature above the fusion temperature of the distilland but below the decomposition temperature of the trichloroethane derivative, and introducing steam into the fused mass at least during the later stages of the distillation.  It is desirable to start with a fairly low vacuum and to increase it gradually, and to maintain the temperature at a nearly constant value within the range 190 DEG -240 DEG F. throughout the distillation. The introduction of steam may be commenced when the chlorobenzene has ceased to distil over under reduced pressure alone; but if a short distillation time is desired, the steam is introduced throughout. The crude mixture is charged into jacketed pot 1 which is connected with condenser 2 and evacuated by venturi exhauster 6 operated by steam supplied through pipe 22, the vacuum being regulated by means of airbleed valve 11.  Steam is introduced into the distill and through line 13 which is connected to high pressure steam line 15 through orifice 16.  The temperature of the steam is preferably above 190 DEG F. and, if necessary, is controlled by means of water jacket 19. Specification 547,874, [Group IV], is referred to.ALSO:Monochlorobenzene is removed from 2,2-bis(p-chlorophenyl)-1,1,1-trichlorethane by distilling the mixture at reduced pressure and at a temperature above the fusion temperature of the distilland but below the decomposition temperature of the trichloroethane derivative, and introducing steam into the fused mass at least during the later stages of the distillation.  It is desirable to start with a fairly low vacuum and to increase it gradually, and to maintain the temperature at a nearly constant value within the range 190 DEG -240 DEG  F. throughout the distillation. The mixture may be prepared by condensing chloral with excess monochlorobenzene in the presence of sulphuric acid with subsequent separation and washing. Specification 547,874 is referred to.
Patent GB-691845-A (GB)
Title: Improvements in or relating to a process for the manufacture of coffee extracts in the form of soluble powder
IPC: A23F5/26
Filed: 1951-10-12
Abstract: In the preparation of a water soluble powdered extract of coffee, freshly roasted and ground coffee is first mixed with water (or ice and water) at a temperature below 15 DEG  C., then successively percolated with further cold water to produce a solution containing 18 to 20 per cent of solid matters.  This first extract is preserved at a temperature between 6 and 10 DEG  C. The part-extracted coffee is then subjected to an extraction with hot water under pressure and at a temperature of 130 to 140 DEG  C. This second extract is concentrated in vacuo at a temperature below 40 DEG  C. to produce a solution containing about 45 per cent of solid matters, which is then mixed with the first solution, the mixture being pulverised in an atomiser so as to be reduced to a powder.  As an alternative, the second extract may be reduced to a powder which is dissolved in the first extract, the resultant being reduced to powder.  An anti-oxidant, e.g. glucose or formaldehyde, may be added to the concentrated solution, and in addition about 1/2 per cent of citric or tartaric acid or the potassium or sodium salt thereof may be added to either one of the solutions before forming into powder.  The powder may also be mixed with a predetermined quantity of a soluble carbo-hydrate or poly-alcohol to increase its bulk and facilitate the measuring of the small quantities required for use.